Studios made of tiles are (8)
I believe the answer is:
ateliers
'studios' is the definition.
(atelier is a kind of studio)
'of tiles are' is the wordplay.
'of' indicates anagramming the letters (the answer comes from or 'of' the letters).
'tiles'+'are'='tilesare'
'tilesare' is an anagram of 'ATELIERS'.
'made' acts as a link.
(Other definitions for ateliers that I've seen before include "Artists' studios" , "workshops" , "Accommodation" , "Artist's workrooms" .)